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Price: 7949.00 GBP
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Steam & Oak Pärnu L Outdoor Sauna — 3–4 Person Thermowood, Corner Glass & Insulated Roof - Harvia Wall 4.5 kW
Most garden saunas are a timber box with a door in it. The Pärnu L is a designed object: black-framed glass across the entire front, black trim, black bench fronts, and warm thermowood everywhere the eye lands. It is the one you put where people can see it, not down the end of the garden behind the shed. At 2.29 m square it is the larger of the pair, with glass wrapping the corner rather than sitting flat across the front — so the view opens up as you sit down. Four people fit on a proper two-level bench. It comes with its own thermowood decking and ground frame, so it stands correctly on almost any level surface without you building a base for it. Usually the quickest sauna we can get you Most cabins in our Estonian range are made to order, and lead times run to several months when the factory is busy. The Pärnu is built on a different line and is often available in around six weeks — sometimes from stock. If you want a sauna this season rather than next, this is the one to ask about first. Tell us when you want it and we will tell you honestly whether it is achievable. Built like a building, not a kit 40 mm thermowood walls, and a roof insulated with 30 mm Kingspan under 18 mm thermowood boards — a warm roof in the building sense, not just a covered one. That is unusual at this size and it is why the room holds heat the way it does. Thermowood is timber kiln-treated at 180–220°C in a low-oxygen chamber: not a coating, but a change to the wood itself that closes the cells so it absorbs far less moisture. That is what stops outdoor timber cupping, twisting and splitting through a British winter, and it happens without chemical preservatives. The floor and decking are 28 mm thermowood. The ground frame is pressure-treated. The trimming boards, bench fronts and backrest are painted black as standard — this is a finished product, not a shell you have to decorate. Specification Capacity 3–4 people External size 2290 mm wide × 2290 mm deep × 2349 mm high Internal size 1770 × 1770 × 2010 mm Sauna room volume 6.3 m³ Walls 40 mm thermowood Roof 30 mm Kingspan insulation, 18 mm thermowood inner boards Floor and decking 28 mm thermowood Door 700 × 1900 mm, 8 mm tempered bronze glass Window 900 × 1900 mm, 6 mm tempered bronze glass Benches Two levels, thermo-aspen with black-painted fronts Backrest Thermo-aspen, painted black Roof finish Self-adhesive roofing felt with black metal flashing What is in the box Everything structural and every piece of trim. No hidden extras to buy before you can build it: 40 mm thermowood wall panels Insulated roof — 30 mm Kingspan with thermowood inner boards Thermowood decking and 28 mm floor Pressure-treated ground frame (44 × 90) Two-level thermo-aspen benches with black-painted fronts Thermo-aspen backrest, painted black Tempered bronze glass door and window Black trimming boards throughout Self-adhesive roofing felt and black metal flashing Screws and fixings Assembly instructions Running it on gas The FinSteam gas heater is flueless, so nothing needs to pass through the insulated roof. Like every gas sauna we build, it needs two ventilation openings through the walls: a fresh air inlet low beside the heater and an exhaust high in the opposite corner. The Pärnu L has the same 40 mm thermowood walls as the Pärnu S, which takes gas without difficulty. We are finalising the gas configuration for this model. If you want to run it off a propane bottle with no electrician and no cable across the garden, ask us and we will confirm the setup and price. In the meantime see the gas heater range. Or choose an electric heater The Pärnu L takes a wall-mounted heater, which keeps the bench and floor space usable. Our Harvia Wall is black steel with a full 20 kg stone capacity for softer, steadier löyly, integrated controls and a 2-year warranty — and black steel is exactly right in this interior. Harvia Wall 4.5 kW Rated 3–6 m³. Just under this room, but the insulated roof makes it workable in a sheltered spot. Harvia Wall 6 kW Rated 5–8 m³ — the sensible default for a well-insulated 6.3 m³ room. No heater — cabin only Supply-only. Choose this if you already have a heater, or you want something we do not list. Not sure which? Ask us. This room is unusually well insulated for its size, so it does not need as much output as the volume suggests — we will match it properly rather than sell you the biggest one. All electric heaters must be installed and connected by a qualified electrician. We confirm the exact supply requirement with you before installation. Prefer a different heater, HUUM or a WiFi-controlled model? Choose cabin only and talk to us; we can supply and fit most makes. Wood-fired on the Pärnu L A wood-burning stove is possible on this cabin, and at 6.3 m³ the room sits right at the bottom of the range the smaller sauna stoves are rated for, so it will run hot and you control it by how much you feed it. The flue does not go through the insulated roof. It exits through the 40 mm
Disclaimer: Product information, including title, description, and images, is sourced/provided by our affiliate partner, Steam & Oak.
Disclaimer: Some of the links on this website are affiliate links, meaning we may earn a commission if you click through and make a purchase. This comes at no additional cost to you.
By clicking the button above, you acknowledge that you will be redirected to a third-party website and agree to their terms and conditions.
Product information, including title, description, and images, is sourced/provided by our affiliate partner, Steam & Oak.
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Share this product with a friend:
Refer a friend and earn 0.05 CEC when they click the link, plus an additional 1.00 CEC if they register. Share this Product and boost your earnings together!